Dear Ellie, I read the whole discussion up to here (all 13 pages) and really, the situation you are in, reminded me of the situation my husband was in two years ago (DD) and for about a month (until he came to his senses that is).
You said; "Why is he so loyal? Why can't he let me go?"
This put me off a bit because I identified to a great extent, and this is why I decided to write.
Your husband is so loyal because he thinks you want the same thing. To remain to this marriage that is. Trust me, if you were to honestly tell him what you are saying here, precisely because it’s obvious that you are so deep in the affair fog and you have sympathy for OM, chances are there is a limit to what this "so loyal" man can take. Right now he is loyal and docile because you keep the truths to yourself. I'm sure you think you're protecting him, but deep down you know you're protecting yourself. Why risk everything good if you are not sure you want to leave. If you could speak honestly...if you could overcome every fear, and told your husband to come to this site and read what you have written, do you think he would be so loyal? Do you think he wouldn't be angry? Do you think he wouldn't go so far as to tell you..."well, good riddance"?
From personal experience, because I believed what my husband was telling ME, and because what InkHulk says above is so accurate that it's scary, when he blurted out (after a month of me being devastated) that he thinks of the other woman and has feelings for her, AND broke NC, I really died inside and for the first time I just didn't care... I looked at him with disgust, and felt superior from both him and OW… I had the worst opinion for the OW (as every BS does, because we are trying to protect the image that we have in our brain about our significant other), but now I could see why he deserves her (two POS together makes perfect) so much so that I wouldn’t waste a single hour, let alone a day, in the same house. I didn’t have to be "loyal" any more to us. Suddenly getting away with my sweet kids, away from all this toxicity seemed like heaven, like the most peaceful and enviable place. It was what I wanted, so I left. And for me, it ended. And it was obvious to me, and as a consequence to him also, that I meant it.
At that moment, of course, my husband came to his senses.
I gave him a chance, but as I told him, just for the kids this time, just for their sake, and I would consider whether I liked him in the future. Again, to show you how entitled all ws feel, he continued to "protect" me with some lies.
We're not there anymore. He tells truths when I ask him, but even now, there are times when I think his truth and his lies are compounded. But he works on this matter and I hope that some day, when he really grasps what vulnerability means to its full extend (he’s getting there), I will admire him again. For now… I admire my self AT LAST!! And because of that, I won’t tolerate another shitstorm of this kind.
All this, to tell you (with deep sympathy as a fellow human who is not perfect), what I always thought about the truth, what I raised my children saying to them over and over…"The truth will set you free". The truth that my husband said to me that day (later on he said all those things about the addiction of the affair), was freeing for me, and, in a matter of hours, for him too. I took control of myself, of what I wanted, of what I deserved. And I decided that, no, I didn’t deserve anything like this. And from his end, he SAW me. He SAW AGAIN who I was and what I stand for, and I think he remembered why he fell in love with me in the first place, and how awful he treated me, our babies, our family...
The truth will set you free.